Valve-stem cap and tire lock



Feb. 28', 1928. 1 ,660,752

1 A. w. HICKS VALVE STEM CAP AND TIRE LOCK Filed July 19. 1926 r E n, i

Patented Feb. 28,1928.

"ancrr1;; testes, cannon-n14.

' E P' TEM Application filed July 19',

of a mounted ftire} W'liereby unauthorized removal of the tire isprevented, and a further object is to provide such a lock with a coverfor the valve stem cap whereby to prevent unauthorized deflation of thetire and theft of the valve cap. Another object isto provide for thelock an improved locking bolt in which friction is reduced and danger ofbecoming rust-tight obviated by reason of the bolt having a pivotal,rather than a sliding movement.

My improvements consist in the novel construction, arrangement andcombination of parts as hereinafter fully, clearly and conciselydescribed, definitely pointed out in my claims and illustrated by theaccompanying drawing (1 sheet) in which-- Fig. 1 shows a transversesectional elevation of a mounted tire'with a lock of my invention assecuring the same against unauthorized removal of the tire andunauthorized acess to the valve cap.

Fig. 2 is an elevation of the lock.

Fig. 3 is an inverted plan view of the lock.

Fig. 4 is a sectional plan view taken on the line l4= of Fig.2. J

Fig. 5' is a sectional elevation taken on the line 55 of; Fig; 4, thevalve stem being shown by dotted lines and the cover thereto being shownfragmentarily.

Fig. 6 is a section taken on the line 66 of Fig. 4.

Referring more specifically to the drawing A designates the valve stem,B. the inner tube, C the casing, D the rim, and E the telly all of whichare or may be of standard, conventional construction and of themselvesform no part of my invention.

The lock of my invention comprises a body, or casing 10, through whicha. hole 11 I is formed to receive the stem A, a bolt 12 for lookingengagement'with thestem A and a key. 13 for releasing the bolt from thestem A. By preference I provide with the tire lock,

a housing, for covering the valve stem, in the form of a tubular caplghaving an open end screws 24.

mae 'eismes j rage. seria No. 123,295.

secured to the lockbody in line with the hole V 11 thereinand having itsopposite, free end' closedl v I v By furtherpreference the lock body 10is in the form ofupper and lower plates 15 and 16, of identical"Jcontour and 'formed as by no stamping, with the hole 11 extendedthrough bothiplatesand eachplate isshaped as at l7 toform a vseatiorakey lockofthejbarrel type as shown at 18. y The bolt 12'is'of thepivotedtype, havingtrunnions 19 and the bolt with its trunnions isrested in a depression 21 formed in the upper face of the plate 16 v(asshown'in Fig. 5). In order to provide for therocking movement of thebolt' I clearances 21 are formed in both plates and to hold thebolt innormal, or looking position I provide an extensilecoil spring 22.

The bolt 12 has its one end formed as a chisel edge for lockingengagement with the threads of the valve stem and such end PI'O'.

jects in the hole 11 ofthe lock casingwhile 1" at its other end the boltextends through the barrel 18 into the shown inFig. 5.

As shown'in Fig. 5 the hole 11 inthe plate path of the key 13, as best 715 is shaped to conform with the section of the tubular valve cap 14 andsaid cap is secured by providing a foot flange 23, on the cap and acountersink in the plate and the described. clearance 21 is continuedthrough the base of the cap.

For convenience in assemblage the plates are relatively separably'joinedas by the By reason oflthe extension of the valve .stem throughthe telly, when the device ofv myinvention isv locked to the stern itwill be obvious that the valve stem cannot be drawn through the tellyexcept by use of a key and it will be'further'obvious that by reason ofthe locked cover forthe valve cap tampering with and theft of the valvecap is prevented.

1. A look of the class described comprising a body having an openingformed there- 7 through adapted to fit non-rotatably around the valvestem ofa pneumatic tire, a flat bolt encased in: said body, said {bolthaving v a chisel edge at one end and being pivo tally mounted betweenits ends on trunnions] which extend transversely to the axis of a saidopening, to permit swinging of said edge into and out of engagement withthe threads of thevalve stem, a yielding pressure device normally tohold said bolt in locking position, key-actuated means for,

5 end secured to said body.

said bolt, and a tubular cap having, an open 2. A look of the classdescribed, compris inga body formed of separably joined parts,

and having an opening therethrough where- U by it may be fitted over avalve stem, a bolt encased in said body, said bolt consisting of atilting member having at one end a chisel edge adapted to swinglengthwise of the valve stem into andiout of engagement with thethreaded portion of the valve stem to prevent endwise movement of saidstem with relation to said bolt, a spring for normally holding the boltin locking position, key actuating means for moving the bolt tounsignature.

through adapted vto fit 'non-rotatably around "the valve stem of apneumatic tire,

boltencasedin said body, said bolt having a thin edge at one end toengage the threaded portion of the valve stem, and a trunnion projectingfrom each side edge thereof whereby said bolt is mounted to rock ortiltin a flatwise manner, the end of saidbolt op- "posite to said thin edgebeing engageable with'a key-in order to rock said bolt on its trunnionsin a plane whiehaligns with the axis ofthe valve stem. In testimonywhereof, I have aifixed ARCHIE W. HICKS.

